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Reproductives that are darker in colour to other castes, have functional eyes and robust skin. This caste becomes the pioneers of colonies.
The temperature, food grade, and activity of this colony will determine how long it takes for a termite to develop from egg to adult.
Nests and tunnels are stored moist because worker termites cannot stand low humidity for long periods of time. The temperature within the nursery of a nest ranges between 10 C and 35 C but seldom varies more than one degree every day. The relative humidity is approximately 100 per cent.
It's important to identify the type of pest termite before beginning treatment. This will help you understand the habits of this colony, find the nest and indicate the most suitable system of control.
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Species are best identified with their soldier termites, which has the most prominent features.
These termites are widely distributed throughout Victoria, and are responsible for more than 80 per cent of irreparable harm to buildings.
Coptotermes construct nests in trees (preferring eucalypts), stumps, under concrete flooring, in wall cavities or enclosed verandahs.
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These termites travel at least 50 metres from the colony using a series of underground tunnels to find food. Coptotermes acinaciformis send large numbers to new food sources and, therefore, respond strongly to bait. In contrast, Coptotermes frenchi research for new food sources and feed gently at points.
Nasutitermes exitiosus is common north of the Great Dividing Range. They construct dim, thin-walled mound nests between 30 cm and 75 cm above ground. These mounds are around 1m in diameter.
This is Victorias biggest species of termite, occasionally called dampwood termite. They are usually found nesting in large pieces of timber (particularly older trees) and are most common in wet, mountainous locations. They may, however, also be found in the arid foothills of Melbourne.
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Porotermes tend to live in smaller colonies than other species, and do not construct shelter tubes or travel much underground. They are more readily controlled than other species.
A colony of Schedorhinotermes will possess two distinct sizes of soldiers, called major and minor soldiers. Major soldiers grow around 5.6 mm long, while minor soldiers are only 3.6 mm long. Both kinds of soldier have mandibles.
Schedorhinotermes are harmful and relatively nomadic, rather than maintaining a fixed, central nest.
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Heterotermes are widely dispersed throughout Australia. But , they are only a pest species in the Northern Hemisphere.
The soldiers of this species are around 4.75 mm long, with lengthy, dark jaws and parallel-sided heads.
Heterotermes live in small colonies that assault fence posts, wood flooring, and paling fences within a small radius of the nest. They are commonly found because they feed on small timbers on the soil surface.
Dusts work to control termites since they ingest and disperse the insecticide among the colony during habitual grooming.
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Insect growth-regulator dusts (like Triflumuron) and non-repellent termiticides are the safest means of termite dust control to the human consumer.
Arsenic trioxide dust has been used since the 1930s to control termites, often with the addition of oxide or another colourant. However, arsenic trioxide is a poisonous, highly toxic elemental pesticide that does not degrade.
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Baiting is often the ideal way to kill an attacking colony when the main nest website cannot be found. Bait stations also allow you to collect samples of termites for species identification.
Bait stations consist of containers of cellulose materials like timber, paper or cellulose gel which are either buried in the ground near the building under attack or carefully placed inside near known harm.
Bait generally use slow-acting, non-detectable toxins in order that the nearly whole colony can be poisoned before adverse impacts arise. Repellent termiticide formulations like those of pyrethroids are not as colony control agents. Care has to be taken not to cross contaminate baits with even tiny residues of different pesticides.
Baiting does not provide a practical barrier. The baits do not isolate the building since termites go to my site are still able to get the structure. For long-term structural protection, barriers are preferred.
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Chemical barriers work by applying an unbroken boundary of pesticide around the outside of an infested structure. This makes a zone or band of poisonous soil that the termites cannot cross. Creating an effective chemical barrier may involve trenching around the foundations of the structure, and injecting the chemical into the soil through holes drilled in concrete foundations.